Sure, Oracle is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself: PostgreSQL  PostgreSQL , MariaDB  MariaDB .

  1. So is PostgreSQL PostgreSQL

    Database Management System

    ★ 18.8K Database License: PostgreSQL

    PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.

  2. So is MariaDB MariaDB

    Community-developed open SQL server

    ★ 6.5K Database License: GPL-2.0

    MariaDB was designed as a drop-in replacement of MySQL(R) with more features, new storage engines, fewer bugs, and better performance.